Sun and Stars: Our Sun

The video explains the sun's crucial role in sustaining life on Earth by providing light and heat. It highlights how plants use sunlight to produce food and oxygen, essential for life. The sun is described as a massive star, much larger than Earth, and the closest star to us. The video also covers the sun's appearance, its hot surface, and the movement caused by exploding gases, with temperatures reaching 1.7 million degrees Celsius.

Why is the sun essential for life on Earth?

• It provides light and heat.

• It creates mountains.

• It controls the weather.

• It provides water.

What do plants produce using the sun's energy?

• Oxygen

• Nitrogen

• Carbon dioxide

• Helium

How does the size of the sun compare to Earth?

• It is smaller than Earth.

• It is one million times larger than Earth.

• It is ten times larger than Earth.

• It is the same size as Earth.

What is the sun's surface temperature?

• 500 degrees Celsius

• 1.7 million degrees Celsius

• 10,000 degrees Celsius

• 100 degrees Celsius

What causes the movement on the sun's surface?

• Hot gases and materials

• Water currents

• Wind

• Magnetic fields